<template>
  <div class="hello">
    <h1>{{ msg }}</h1>
    <!-- 新增按钮 -->
    <button @click="handleClick">点击测试</button>
  </div>
</template>

<script>
export default {
  name: 'HelloWorld',
  data() {
    return {
      msg: '欢迎使用 Vue!'
    };
  },
  methods: {
    handleClick() {
      alert('按钮被点击了！');
    }
  }
};
</script>

<!-- Add "scoped" attribute to limit CSS to this component only -->
<style scoped>
h3 {
  margin: 40px 0 0;
}
ul {
  list-style-type: none;
  padding: 0;
}
li {
  display: inline-block;
  margin: 0 10px;
}
a {
  color: #42b983;
}
</style>
